@article {39022,
	title = {Size-dependent diel foraging periodicity of a mayfly grazer in streams with or without fish},
	volume = {68},
	year = {1993},
	pages = {242-250},
	publisher = {Oikos },
	url = {http://www.jstor.org/pss/3545998},
	author = {Culp, J.M. and Scrimgeour, G. J.}
}
